we know the vice presidential debate is this week and there had been memorable moments before. we remember this from four years ago. >> nice to meet you. hey, can i call you joe? >> you can call me joe. >> can i call you joe. that was sarah palin holding her own against joe biden and this memorable moment from 1998 debate, vice presidential candidate lloyd bentsen saying this to dan quayle as he said he he had as much experience as jfk. >> jack kennedy was a friend of mine. senator, you're no jack kennedy. >> two very memorable lines but you made an interesting observation. >> they are quite famous but both were uttered by losing candidates. paul ryan and joe biden know the stakes are huge for this debate. this is brand-new terrain for ryan. biden has more pressure on him than last week after the man at the top of the ticket did not deliver. >> rick klein with the bigger picture, thank you. >>> a reminder right here, "one on one, the candidates debate" on thursday night, diane and george right at the desk. jake tapper and me at the debate hall, and abc's martha raddatz will be